JPH0349123Y2 - - Google Patents
Info
- Publication number
- JPH0349123Y2 JPH0349123Y2 JP314286U JP314286U JPH0349123Y2 JP H0349123 Y2 JPH0349123 Y2 JP H0349123Y2 JP 314286 U JP314286 U JP 314286U JP 314286 U JP314286 U JP 314286U JP H0349123 Y2 JPH0349123 Y2 JP H0349123Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- shoe
- metal
- steel
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 50
- 239000010959 steel Substances 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 238000012856 packing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 229920001875 Ebonite Polymers 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012791 sliding layer Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は道路橋や鉄道橋等における鋼桁の支
承構造に関するものである。[Detailed description of the invention] [Field of industrial application] This invention relates to a support structure for steel girders in road bridges, railway bridges, etc.
従来、鋼桁支承構造としては、実公昭52−
34190号公報により公表されているように、橋台
に固定された金属製座板に、上面滑り層を有する
滑り受沓および下面滑り層を有する滑り移動沓を
介して鋼桁の下部フランジが載置され、かつ前記
座板の左右両側に一体に設けられた支承部材に、
逆Ｌ字状のストツパにおける縦腕がボルトにより
固定され、そのストツパにおける横腕が前記下部
フランジの上面に対向するように配置されている
鋼桁支承構造が知られている。
Conventionally, as a steel girder support structure,
As disclosed in Publication No. 34190, the lower flange of the steel girder is placed on a metal seat plate fixed to the abutment via a sliding shoe with a sliding layer on the upper surface and a sliding shoe with a sliding layer on the lower surface. and supporting members integrally provided on both left and right sides of the seat plate,
A steel girder support structure is known in which a vertical arm of an inverted L-shaped stopper is fixed with a bolt, and a horizontal arm of the stopper is arranged so as to face the upper surface of the lower flange.
しかるに、前記従来の鋼桁支承構造の場合は、
滑り受沓が座板に対し桁長手方向にずれ動いたり
滑り移動沓が鋼桁に対し桁長手方向にずれ動いた
りする恐れがあり、さらに鋼桁における被支承部
にアツプリフトが作用した場合これを弾性的に押
えることができず、そのためアツプリフトに対し
不安定であり、また鋼桁巾方向の沓巾が比較的小
さいので、所要の支承面積を確保するためには、
鋼桁長手方向の沓の長さを長くする必要があり、
沓の長さが長くなると、鋼桁が比較的大きく撓ん
だとき、沓における鋼桁長手方向の一端部に過大
な圧縮力が作用するという問題が発生する。
However, in the case of the conventional steel girder support structure,
There is a risk that the sliding shoe may shift in the longitudinal direction of the girder with respect to the seat plate, or that the sliding shoe may shift in the longitudinal direction of the girder with respect to the steel girder. It cannot be held down elastically and is therefore unstable against uplift, and the width of the foot in the width direction of the steel girder is relatively small, so in order to secure the required bearing area,
It is necessary to increase the length of the shoe in the longitudinal direction of the steel girder.
As the length of the shoe increases, a problem arises in that when the steel girder is deflected relatively largely, an excessive compressive force is applied to one end of the shoe in the longitudinal direction of the steel girder.
この考案は前述の問題を有利に解決できる鋼桁
支承構造を提供することを目的とするものであつ
て、この考案の要旨とするところは、支持構造体
１に載置されて固定された金属製保持板２の中央
部に、鋼桁３の下部フランジ４よりも広巾の沓嵌
入用開口部５が設けられ、その保持板２の上面に
は開口部５の左右両側において金属製支持部材６
が一体に設けられ、ゴム沓７の下部は前記開口部
５に嵌入されて支持構造体１に載置され、前記下
部フランジ４の下面にはそれよりも広巾の鋼製支
承板８が固定され、その支承板８がゴム沓７の上
面に載置されると共に、支承板８から下方に突出
している係合突起９がゴム沓７における上部金属
板１０の係合凹部１１に嵌入され、前記各支持部
材６には逆Ｌ字状の金属製クリツプ１２における
縦腕１３がボルト１４により固定され、そのクリ
ツプ１２における横腕１５と前記支承板８の上面
との間には弾性パツキング１６が介在されている
ことを特徴とする鋼桁支承構造にある。
The purpose of this invention is to provide a steel girder support structure that can advantageously solve the above-mentioned problems. An opening 5 for shoe insertion, which is wider than the lower flange 4 of the steel girder 3, is provided in the center of the holding plate 2 made of metal, and metal supporting members 6 are provided on the upper surface of the holding plate 2 on both the left and right sides of the opening 5.
The lower part of the rubber shoe 7 is fitted into the opening 5 and placed on the support structure 1, and a wider steel support plate 8 is fixed to the lower surface of the lower flange 4. The support plate 8 is placed on the upper surface of the rubber shoe 7, and the engagement protrusion 9 projecting downward from the support plate 8 is fitted into the engagement recess 11 of the upper metal plate 10 of the rubber shoe 7. A vertical arm 13 of an inverted L-shaped metal clip 12 is fixed to each support member 6 by a bolt 14, and an elastic packing 16 is interposed between the horizontal arm 15 of the clip 12 and the upper surface of the support plate 8. It has a steel girder support structure that is characterized by
次にこの考案を図示の例によつて詳細に説明す
る。
Next, this invention will be explained in detail using illustrated examples.
第３図および第４図はこの考案の実施例におい
て用いられる支持部材付き保持板１７を示すもの
であつて、鋼板からなる保持板２の中央部に、左
右方向に長くなつている長方形の沓嵌入用開口部
５が設けられ、かつ保持板２の上面には、開口部
５の左右両側の中央部に近接する位置において、
複数のねじ孔１８を有する垂直な鋼製支持部材６
の下端部が溶接により固着され、さらにその支持
部材６の外面と保持板２の上面とにわたつて鋼製
補強リブ１９が溶接により固着され、また保持板
２の左右両側にはボルト挿通用透孔２０が設けら
れている。 3 and 4 show a holding plate 17 with a supporting member used in an embodiment of this invention, in which a rectangular shoe extending in the left-right direction is provided in the center of the holding plate 2 made of a steel plate. A fitting opening 5 is provided on the upper surface of the retaining plate 2 at a position close to the center on both left and right sides of the opening 5.
Vertical steel support member 6 with a plurality of screw holes 18
The lower end portion is fixed by welding, and a steel reinforcing rib 19 is further fixed by welding across the outer surface of the support member 6 and the upper surface of the retainer plate 2. Also, on both left and right sides of the retainer plate 2, there are holes for bolt insertion. A hole 20 is provided.
第５図および第６図はこの考案の実施例におい
て用いられるゴム沓７を示すものであつて、それ
ぞれ鋼板からなる上部金属板１０と複数の中間金
属板２１と下部金属板２２とが上下方向に間隔を
おいて平行に配置され、各金属板の間には軟質ゴ
ム層２３が一体に介在され、かつ上部金属板１０
の中央部には円形の係合用凹部１１が設けられ、
上部金属板１０の上面には繊維混入硬質ゴムから
なる上面ゴム膜２４が一体に設けられ、下部金属
板２２の下面には繊維混入硬質ゴムからなる下面
ゴム層２５が一体に設けられている。 5 and 6 show a rubber shoe 7 used in an embodiment of this invention, in which an upper metal plate 10 made of a steel plate, a plurality of intermediate metal plates 21, and a lower metal plate 22 are arranged in the vertical direction. are arranged in parallel at intervals, a soft rubber layer 23 is integrally interposed between each metal plate, and the upper metal plate 10
A circular engagement recess 11 is provided in the center of the
An upper rubber film 24 made of hard rubber mixed with fibers is integrally provided on the upper surface of the upper metal plate 10, and a lower rubber layer 25 made of hard rubber mixed with fibers is integrally provided on the lower surface of the lower metal plate 22.
第７図および第８図はこの考案の実施例におい
て用いられる係合突起付き支承板２６を示すもの
であつて、鋼板からなる支承板８の中央部に円形
の透孔２７が設けられ、円形の鋼製係合突起９の
上部その透孔２７に嵌合されて溶接により固着さ
れ、かつ支承板８の左右両側の前部および後部に
はストツパ２８が突設されている。 7 and 8 show a support plate 26 with an engaging protrusion used in an embodiment of this invention, in which a circular through hole 27 is provided in the center of the support plate 8 made of a steel plate, The upper part of the steel engagement protrusion 9 is fitted into the through hole 27 and fixed by welding, and stoppers 28 are provided protruding from the front and rear portions on both left and right sides of the support plate 8.
第１図および第２図は前記支持部材付き保持板
１７とゴム沓７と係合突起付き支承板２６とを使
用したこの考案の第１実施例に係る橋桁可動端用
鋼桁支承構造を示すものであつて、橋台または橋
脚等のコンクリート製支持構造体１に支持部材付
き保持板１７における保持板２が載置されると共
に、予め支持構造体１に埋込固定されたアンカボ
ルト２９が保持板２の左右両側の透孔に挿通さ
れ、そのアンカボルト２９に螺合されたナツト３
０により保持板２が支持構造体１に締付固定され
ている。 1 and 2 show a steel girder support structure for a movable end of a bridge girder according to a first embodiment of this invention, which uses the retaining plate 17 with supporting members, the rubber shoe 7, and the support plate 26 with engaging protrusions. The retaining plate 2 of the retaining plate with supporting member 17 is placed on a concrete supporting structure 1 such as an abutment or a pier, and anchor bolts 29 embedded and fixed in the supporting structure 1 in advance are held. A nut 3 is inserted into the through hole on both the left and right sides of the plate 2 and is screwed onto the anchor bolt 29.
The holding plate 2 is fastened and fixed to the support structure 1 by 0.
ゴム沓７の下部は金属製保持板２の開口部５に
嵌入され、ゴム沓７の上面に係合突起付き支承板
２６における鋼製支承板８が載置されると共に、
係合突起付き支承板２６における係合突起９がゴ
ム沓７における上部金属板１０の係合凹部１１に
嵌入され、かつ鋼製支承板８は鋼桁３における下
部フランジ４に対し溶接により固着され、前記ゴ
ム沓７の巾および鋼製支承板８の巾は下部フラン
ジ４の巾よりも大きくなつている。 The lower part of the rubber shoe 7 is fitted into the opening 5 of the metal holding plate 2, and the steel support plate 8 of the support plate 26 with engagement protrusions is placed on the upper surface of the rubber shoe 7.
The engagement protrusion 9 of the support plate with engagement protrusion 26 is fitted into the engagement recess 11 of the upper metal plate 10 of the rubber shoe 7, and the steel support plate 8 is fixed to the lower flange 4 of the steel girder 3 by welding. The width of the rubber shoe 7 and the width of the steel support plate 8 are larger than the width of the lower flange 4.
逆Ｌ字状の金属製クリツプ１２における縦腕１
３は金属製支持部材６の外面に当接され、その縦
腕１３に挿通されて支持部材６に螺合されたボル
ト１４により、縦腕１３が金属製支持部材６に固
定され、かつ金属製クリツプ１２における横腕１
５の下面に設けられた凹部に、ゴムからなる弾性
パツキング１６の上部が嵌合され、その弾性パツ
キング１６の下面は前記鋼製支承板８の側部の上
面に当接され、さらに金属製支持部材６とその前
方および後方に配置されたストツパ２８との間に
桁移動許容空間Ｌが設けられ、温度変化等により
鋼桁３が伸縮する場合、鋼桁３における被支承部
の移動が許容される。また大きな水平地震力によ
り鋼桁３がその長手方向に過度に移動しようとし
た場合は、支承板８のストツパ２８が支持部材６
に突き当たつて鋼桁３の移動が制限される。 Vertical arm 1 in inverted L-shaped metal clip 12
3 is in contact with the outer surface of the metal support member 6, and the vertical arm 13 is fixed to the metal support member 6 by a bolt 14 that is inserted through the vertical arm 13 and screwed into the support member 6, and the metal Lateral arm 1 in clip 12
The upper part of an elastic packing 16 made of rubber is fitted into the recess provided on the lower surface of the elastic packing 16, and the lower surface of the elastic packing 16 is brought into contact with the upper surface of the side of the steel support plate 8. A girder movement permissible space L is provided between the member 6 and the stoppers 28 disposed in front and rear thereof, and when the steel girder 3 expands or contracts due to temperature changes, movement of supported parts of the steel girder 3 is permitted. Ru. Furthermore, if the steel girder 3 attempts to move excessively in its longitudinal direction due to a large horizontal seismic force, the stopper 28 of the support plate 8
The movement of the steel girder 3 is restricted when it hits the .
第９図はこの考案の第２実施例に係る橋桁固定
端用鋼桁支承構造を示すものであつて、金属製支
持部材６とその前方および後方に配置されたスト
ツパ２８との間に小さな間隙が設けられている
が、その他の構成は第１実施例の場合と同様であ
る。 FIG. 9 shows a steel girder support structure for a fixed end of a bridge girder according to a second embodiment of this invention, in which there is a small gap between a metal support member 6 and stoppers 28 disposed in front and rear thereof. is provided, but the other configurations are the same as in the first embodiment.
この考案を実施する場合、前記軟質ゴム層２３
としては、例えば硬度50°〜60°のものを使用し、
前記繊維混入硬質ゴムとしては、例えば硬度80°
〜90°のものを使用する。また前記金属製クリツ
プ１２としては例えば鋳鉄製のものまたは鍛造品
を使用する。 When implementing this idea, the soft rubber layer 23
For example, use one with a hardness of 50° to 60°,
The fiber-mixed hard rubber may have a hardness of 80°, for example.
Use one with a ~90° angle. Further, as the metal clip 12, for example, one made of cast iron or a forged product is used.
この考案によれば、支持構造体１に載置されて
固定された金属製保持板２の中央部に沓嵌入用開
口部５が設けられ、その沓嵌入用開口部５にゴム
沓７の下部が嵌入され、鋼桁３における下部フラ
ンジ４の下面に固定された鋼製支承板８がゴム沓
７の上面に載置されると共に、鋼製支承板８から
下方に突出している係合突起９がゴム沓７におけ
る上部金属板１０の係合凹部１１に嵌入されてい
るので、支持構造体１に対するゴム沓７のずれ動
きおよびゴム沓７と鋼製支承板８とのずれ動き
を、簡単な手段によつて確実に防止することがで
き、かつ鋼桁３における被支承部にアツプリフト
が作用した場合は、クリツプ１２により弾性パツ
キング１６を介して鋼桁３を弾性的に押えて、鋼
桁３を安定させることができ、さらにゴム沓７お
よび鋼製支承板８の巾は鋼桁３における下部フラ
ンジ４の巾よりも広くなつているので、ゴム沓７
における鋼桁長手方向の長さを比較的短かくする
ことができ、そのため鋼桁３が比較的大きく撓ん
だ場合でも、ゴム沓７における鋼桁長手方向の一
端部に過大な圧縮力が作用するのを防止できる等
の効果が得られる。
According to this invention, the shoe insertion opening 5 is provided in the center of the metal holding plate 2 placed and fixed on the support structure 1, and the lower part of the rubber shoe 7 is inserted into the shoe insertion opening 5. A steel support plate 8 which is fitted and fixed to the lower surface of the lower flange 4 of the steel girder 3 is placed on the upper surface of the rubber shoe 7, and an engaging protrusion 9 protrudes downward from the steel support plate 8. is fitted into the engagement recess 11 of the upper metal plate 10 in the rubber shoe 7, so that the displacement movement of the rubber shoe 7 with respect to the support structure 1 and the displacement movement between the rubber shoe 7 and the steel support plate 8 can be easily prevented. If the uplift can be reliably prevented by using the above-mentioned method and the uplift acts on the supported part of the steel girder 3, the clip 12 elastically presses the steel girder 3 through the elastic packing 16, and the steel girder 3 Furthermore, since the width of the rubber shoe 7 and the steel support plate 8 is wider than the width of the lower flange 4 of the steel girder 3, the rubber shoe 7 can be stabilized.
The length of the steel girder in the longitudinal direction can be made relatively short, so even if the steel girder 3 is bent relatively largely, an excessive compressive force will not be applied to one end of the steel girder in the longitudinal direction of the rubber shoe 7. Effects such as being able to prevent this from occurring can be obtained.
第１図はこの考案の第１実施例に係る鋼桁支承
構造を示す縦断正面図、第２図はその平面図、第
３図はこの考案の実施例において用いられる支持
部材付き保持板の平面図、第４図は第３図のＡ−
Ａ線断面図、第５図はこの考案の実施例において
用いられるゴム沓の平面図、第６図は第５図のＢ
−Ｂ線拡大断面図、第７図は係合突起付き支承板
の平面図、第８図は第７図のＣ−Ｃ線断面図であ
る。第９図はこの考案の第２実施例に係る鋼桁支
承構造を示す平面図である。
図において、１は支持構造体、２は金属製保持
板、３は鋼桁、４は下部フランジ、５は沓嵌入用
開口部、６は金属製支持部材、７はゴム沓、８は
鋼製支承板、９は係合突起、１０は上部金属板、
１１は係合凹部、１２は金属製クリツプ、１３は
縦腕、１４はボルト、１５は横腕、１６は弾性パ
ツキング、１７は支持部材付き保持板、２１は中
間金属板、２２は下部金属板、２３は軟質ゴム
層、２４は上面ゴム膜、２５は下面ゴム層、２６
は係合突起付き支承板、２８はストツパ、２９は
アンカボルトである。
Fig. 1 is a longitudinal sectional front view showing a steel girder support structure according to the first embodiment of this invention, Fig. 2 is a plan view thereof, and Fig. 3 is a plan view of a retaining plate with a support member used in an embodiment of this invention. Figure 4 is A- of Figure 3.
5 is a plan view of the rubber shoe used in the embodiment of this invention, and FIG. 6 is a sectional view taken along line A.
7 is a plan view of the support plate with an engaging protrusion, and FIG. 8 is a sectional view taken along line CC in FIG. 7. FIG. 9 is a plan view showing a steel girder support structure according to a second embodiment of this invention. In the figure, 1 is a support structure, 2 is a metal holding plate, 3 is a steel girder, 4 is a lower flange, 5 is an opening for shoe insertion, 6 is a metal support member, 7 is a rubber shoe, and 8 is made of steel a support plate; 9 is an engagement protrusion; 10 is an upper metal plate;
11 is an engagement recess, 12 is a metal clip, 13 is a vertical arm, 14 is a bolt, 15 is a horizontal arm, 16 is an elastic packing, 17 is a holding plate with a supporting member, 21 is an intermediate metal plate, and 22 is a lower metal plate. , 23 is a soft rubber layer, 24 is a top rubber film, 25 is a bottom rubber layer, 26
28 is a support plate with an engaging protrusion, 28 is a stopper, and 29 is an anchor bolt.
Claims (1)
持板２の中央部に、鋼桁３の下部フランジ４より
も広巾の沓嵌入用開口部５が設けられ、その保持
板２の上面には開口部５の左右両側において金属
製保持部材６が一体に設けられ、ゴム沓７の下部
は前記開口部５に嵌入されて支持構造体１に載置
され、前記下部フランジ４の下面にはそれよりも
広巾の鋼製支承板８が固定され、その支承板８が
ゴム沓７の上面に載置されると共に、支承板８か
ら下方に突出している係合突起９がゴム沓７にお
ける上部金属板１０の係合凹部１１に嵌入され、
前記各支持部材６には逆Ｌ字状の金属製クリツプ
１２における縦腕１３がボルト１４により固定さ
れ、そのクリツプ１２における横腕１５と前記支
承板８の上面との間には弾性パツキング１６が介
在されていることを特徴とする鋼桁支承構造。 A shoe insertion opening 5 wider than the lower flange 4 of the steel girder 3 is provided in the center of the metal retaining plate 2 placed and fixed on the support structure 1, and the upper surface of the retaining plate 2 is provided with an opening 5 for inserting a shoe. A metal holding member 6 is integrally provided on both the left and right sides of the opening 5, the lower part of the rubber shoe 7 is fitted into the opening 5 and placed on the support structure 1, and the lower surface of the lower flange 4 is provided with a metal holding member 6. A wider steel support plate 8 is fixed, and the support plate 8 is placed on the upper surface of the rubber shoe 7, and an engaging protrusion 9 protruding downward from the support plate 8 is attached to the upper surface of the rubber shoe 7. is inserted into the engagement recess 11 of the metal plate 10,
A vertical arm 13 of an inverted L-shaped metal clip 12 is fixed to each support member 6 by a bolt 14, and an elastic packing 16 is provided between a horizontal arm 15 of the clip 12 and the upper surface of the support plate 8. A steel girder support structure characterized by being interposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP314286U JPH0349123Y2 (en) | 1986-01-16 | 1986-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP314286U JPH0349123Y2 (en) | 1986-01-16 | 1986-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62120505U JPS62120505U (en) | 1987-07-31 |
| JPH0349123Y2 true JPH0349123Y2 (en) | 1991-10-21 |
Family
ID=30782631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP314286U Expired JPH0349123Y2 (en) | 1986-01-16 | 1986-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349123Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4648117B2 (en) * | 2005-07-15 | 2011-03-09 | ニッタ株式会社 | Elastic bearings for structures |
| JP4970234B2 (en) * | 2007-12-17 | 2012-07-04 | 中日本高速道路株式会社 | Bridge vibration control device and viaduct |
| KR101008606B1 (en) | 2008-05-02 | 2011-01-17 | (주)안풍건설 | Preveting process of falling bridge-beam and constructon there of |
| JP5413026B2 (en) * | 2009-07-30 | 2014-02-12 | 横浜ゴム株式会社 | Rubber bearing device |
| JP5412307B2 (en) * | 2010-02-01 | 2014-02-12 | 株式会社ビービーエム | Installation method of bridge support device and fixing jig used in the method |
| JP6239802B1 (en) * | 2017-07-10 | 2017-11-29 | 株式会社ビービーエム | Structural support device |
-
1986
- 1986-01-16 JP JP314286U patent/JPH0349123Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62120505U (en) | 1987-07-31 |
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